Java 操作数组的流

package io.p6.bytestream;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;public class byteArrayStreamDemo {public static void main(String[] args) throws IOException {ByteArrayInputStream bis=new ByteArrayInputStream("abcdefg".getBytes());//如果源或者目的是内存  操作内存的ByteArrayOutputStream bos=new ByteArrayOutputStream();int ch=0;while((ch=bis.read())!=-1) {bos.write(ch);}System.out.println(bos.toString());}}